2 TROCHILID^E. 



White obtained a single specimen of this Humming-bird in Septem- 

 ber 1880, at Fuerte de Andalgala, in Catamarca. It is a well-known 

 species in Chili,, where, according to Gould, " it inhabits the sheltered 

 valleys of the Andes, just below the line of perpetual congelation/' 



231. CH^TOCEECUS BUEMEISTEBI, Scl. 

 (BURMEISTEE/S HUMMING-BIRD.) 



[PLATE XI.] 

 Chaetocercus burmeisteri, Scl P. Z. S. 1887, p. 639. 



Description. Bill straight, entirely black and as long as the head ; whole 

 upper part of the body of a dark green metallic colour, except the wings, which 

 are black ; the small feathers of the throat on the under jaw are whitish with a 

 darker spot in the middle ; there begins on the throat the crimson-red bilateral 

 beard, which is composed on both sides of three rows of very small feathers, 

 these becoming somewhat larger in the middle of the beard and terminating 

 with two ranges of feathers in the exterior half part. Many of these feathers 

 are shining metallic green in certain positions. A white spot behind the eyes 

 descends from there to the breast, which is also whitish, but with a dark spot 

 on every feather, causing a greyish appearance in the middle of the breast. The 

 hinder half of the breast and the belly are black, but the anal portion is white, 

 as also the sides of the body, except the thighs, which are black. The 

 inferior feathers behind the anal region are clear yellow-brown, but those in 

 the middle have a green metallic spot. The tail is composed of eight feathers ; 

 the two exterior on each side are more than an inch long, very small but of 

 equal size in the whole extent, and rounded at the tip, not pointed. The 

 exterior rectrix is entirely black ; the second has a clear brown stripe on the 

 inside border. The third feather of each side is very short, only half an inch 

 long and more than eight lines shorter than the exterior ; its colour is 

 entirely black. The fourth feathers on each side, that is in the middle of the 

 tail, are shorter than the third pair and partly covered by the coverts : they are 

 of metallic green colour like the coverts. 



Hub. Tucuman. 



The only known specimen of this species was procured in the Valle 

 de Tafi, in the mountains of Tucuman, by Herr Schulz, and is now in 

 the National Museum of Buenos Ayres. This species is nearly allied 

 to C. bombus, Gould (Mon. Troch. Suppl. p. 45, pi. 32), but differs in 

 the form of the tail. The figure (Plate XI.) is taken from a water- 

 colour sketch of this specimen kindly sent to us by Dr. Burmeister. 



